Cartwright had been with the Magpies since the age of nine, making her first team debut aged 14.

She had played for the Toon’s first team until the last few games of last season, one of which was against Whitley Bay when she scored to knock them out of the Northumberland County Cup.

Cartwright was surprised by Bay's approach and insisted she had never thought of playing for another club.

She said: “It was a big decision to leave Newcastle after such a long time. I have a lot of good friends and a lot for which to thank them.

“Whitley Bay are now my club. They are ambitious, play at a good standard and seem to be a nice bunch of girls.”

Manager Colin Phillips said: “Jo has played at a high level and has a great deal of experience.

“When I was looking for a centre-back she was my top target I am delighted she is joining us.”

Cartwright goes into the Whitley Bay squad for their friendly against Middlesbrough tomorrow and for the Umbro tournament on July 26 and 27.

Meanwhile, Newcastle United have taken two squads to compete in the Welsh International Super Cup in Aberystwyth this weekend.

The Toon players have almost completed their first month of training with friendly games planned over the next three weeks.

United will be away to Preston North End in the preliminary round of the League Cup on Sunday, August 31 (2.00). The Women's Premier League game at home to Manchester City on that day has consequently been postponed.